Government (Federal) for NonProfits - Find information and services for nonprofits, including grants, loans, assistance, taxes, management and more.
Corporation for National & Community Service Corporation for National & Community Service
United We Serve - United We Serve / - A nationwide initiative to promote volunteerism and community service in the economic downturn.
Internal Revenue Service

IRS Charities and Nonprofits Page

IRS Stay Exempt - Tax basics for 501(c)(3) organizations

IRS (Downloadable Forms and Publications Menu) - Includes most IRS forms and publications.

  Library of Congress
Catalog of Federal Domestic Assistance Catalog of Federal Domestic Assistance - A government-wide compendium of Federal programs, projects, services, and activities that provide assistance or benefits to the American public.
U.S. Census Bureau United States Census Bureau
  The Federal Register Online (1994-present)
  Social Security Administration
  U.S. Copyright Office Home Page
  USDA-Rural Development - a Federal Agency with many loan and grant programs to assist rural communities, non-profit organizations and low income households
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  U.S. Senate
  The White House
  Thomas: Legislative Information on the Internet (Library of Congress)